Generations of Computers
The first generation
The first generation was vacuum tubes. The first computers used vacuum tubes for circuitry and magnetic drums for memory, and were often enormous, taking up entire rooms. Vacuum tubes were invented in 1940.
The second generation
The second generation was Transistors. Transistors replaced vacuum tubes and ushered in the second generation of computers, transistors made computers smaller, faster, cheaper, more energy efficient and more reliable than their first-generation computers. The transistor was invented in 1956.
The third generation
The third generation was Integrated Circuits. The development of the integrated circuit was the hallmark of the third generation of computers. Transistors were miniaturized and placed on silicone chips, called semiconductors, which increased the speed and efficiency of computers by a lot. The integrated circuit was invented in 1964.
The forth generation
The forth generation was Microprocessors.
The fifth generation
The fifth generation was Artificial Intelligence.